Introducing the Klean Kanteen Rise Tumbler 16oz (473ml) - Stellar, an insulated tumbler and cup made from certified 90% post-consumer recycled 18/8 stainless steel with Climate Lock™ insulation. Enjoy hot or cold drinks without sacrificing temperature, while enjoying comfortable ergonomic contours and a splash-proof Flip Lid. It also fits in most cupholders, making it perfect for indoor or outdoor enjoyment.